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strings: limits allocation size for SplitN

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So that `strings.SplitN("", "T", int(144115188075855872))` does not panic.

Change-Id: Iea00417e61780bcaf0fee02fa2b18026d89bc545
GitHub-Last-Rev: d1f45b44a8
GitHub-Pull-Request: golang/go#51755
Reviewed-on: https://go-review.googlesource.com/c/go/+/393654
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Philippe Antoine 2022-03-20 21:34:42 +00:00 • committed by Tobias Klauser
parent 90b29e1865
commit cc46cac3bc
2 changed files with 5 additions and 0 deletions
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3
src/strings/strings.go
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@ -244,6 +244,9 @@ func genSplit(s, sep string, sepSave, n int) []string {
n = Count(s, sep) + 1
}
if n > len(s)+1 {
n = len(s) + 1
}
a := make([]string, n)
n--
i := 0